醇解(Alcoholysis)是指酯、酰氯、酸酐、酰胺、腈等化合物在醇作用下发生的分解反应。它是溶剂解的一种形式。酯的醇解也称酯交换反应,得到一个新酯和一个新醇。酰氯的醇解得到酯和氯化氢。酸酐的醇解得到酯和羧酸。
因此在其制备过程中,首先由醋酸乙烯酯聚合生成 聚醋酸乙烯酯,然后醇解生成PVA,其反应式为: 醇解(Alcoholysis)是指酯、酰氯、酸酐、酰胺等化合物在醇 作用下发生的分解反应。它是溶剂解的一种形式。
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The third chapter discussed the effect of saponification on structure and properties of a series of PVA fiber. The FT-IR, 1H-NMR, DSC and XRD were used to analyze the problem.
第三部分对部分醇解的聚乙烯醇纤维的结构性能进行了较为详细的讨论。
参考来源 - 高性能纤维——PVA纤维的结构控制与拉伸机理研究The esterified products could be used as the polyester for polyester-epoxy powder coatings. The influences of the main factors,such as the amount of NPG,the power of microwave,reaction time,on the glycolysis and esterification were studied and optimized.
通过研究各主要因素对醇解反应和酯化反应的影响,实现了反应条件的最优化组合。
参考来源 - 微波辅助回收废聚酯制备粉末涂料用聚酯树脂·2,447,543篇论文数据,部分数据来源于NoteExpress
讨论了醇解和缩聚的温度及时间等因素。
The temperature and time of alcoholysis and polycondensation were discussed.
分析了催化剂、醇解温度、反应物浓度等对醇解度的影响。
The effect of the reaction time, temperature, the concentration of reactant and catalyst on the alcoholysis process were investigated.
对于树脂的熔融时间,HPMC、不同醇解度的PVA、聚合釜均有较大影响。
As for melt time of resin, HPMC, PVA, polymerization vessel may affect it.
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